NCT06862401

Brief Summary

To determine the influence of hand practice sequence on psychomotor skill acquisition in a glass ceramic onlay preparation among undergraduate dental students.

Trial Health

35
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
28

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Mar 2025

Shorter than P25 for not_applicable

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

March 2, 2025

Completed
4 days until next milestone

First Posted

Study publicly available on registry

March 6, 2025

Completed
25 days until next milestone

Study Start

First participant enrolled

March 31, 2025

Completed
2 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 30, 2025

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

July 4, 2025

Completed
Last Updated

April 2, 2025

Status Verified

March 1, 2025

Enrollment Period

2 months

First QC Date

March 2, 2025

Last Update Submit

March 27, 2025

Conditions

Keywords

dominant handsequential practicehealthcaredental educationprosthodonticcompetency

Outcome Measures

Primary Outcomes (1)

  • Onlay preparation score

    Onlay preparation criteria using Rubic scale, assessed by the student self-assessment and one prosthodontic staff. The higher score indicates better performance of the student

    3 hours

Secondary Outcomes (1)

  • Qualitative measurement by focus group interview

    1 hours

Study Arms (4)

Left: dominant - non dominant

EXPERIMENTAL

The left-handed participants in this arm started practicing a tooth preparation for a glass ceramic onlay using their dominant left hand during the first practicing session, followed by non-dominant right hand during the second practicing session. Each practice session is limited to 2 hours.

Procedure: Glass ceramic onlay preparation

Left: non dominant

ACTIVE COMPARATOR

The left-handed participants in this arm practicing a tooth preparation for a glass ceramic onlay using their non-dominant right hand for both the first and second practicing sessions. Each practice session is limited to 2 hours.

Procedure: Glass ceramic onlay preparation

Right: dominant - non dominant

EXPERIMENTAL

The right-handed participants in this arm started practicing a tooth preparation for a glass ceramic onlay using their dominant right hand during the first practicing session, followed by non-dominant left hand during the second practicing session. Each practice session is limited to 2 hours.

Procedure: Glass ceramic onlay preparation

Right: non dominant

ACTIVE COMPARATOR

The right-handed participants in this arm practicing tooth preparation for glass ceramic onlay using their non-dominant left hand for both the first and second practicing sessions. Each practice session is limited to 2 hours.

Procedure: Glass ceramic onlay preparation

Interventions

The participants engaged in two practice sessions, each lasting two hours. They either started with their dominant hand followed by non-dominant hand or practiced solely with their non-dominant hand. Each participant prepared a mandibular left first molar resin typodont fixed to the table for a glass ceramic onlay restoration. Preparation was conducted extraorally.

Left: dominant - non dominantLeft: non dominantRight: dominant - non dominantRight: non dominant

Eligibility Criteria

Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • The fourth- to sixth-year undergraduate dental students at a single setting of school
  • The fifth- and sixth-year students had completed laboratory and lecture courses in operative and fixed dental prosthodontics
  • The fourth-year students are enrolled in their final laboratory and lecture courses in fixed prosthodontics.

You may not qualify if:

  • Undergraduate dental students who have prior experience with onlay preparation in laboratory or clinical settings or those who are unwillingness to adhere to the study protocol.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Officials

  • Nareudee Limpuangthip, DDS, PhD

    Chulalongkorn University

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Nareudee Limpuangthip, DDS, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
OTHER
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor

Study Record Dates

First Submitted

March 2, 2025

First Posted

March 6, 2025

Study Start

March 31, 2025

Primary Completion

May 30, 2025

Study Completion

July 4, 2025

Last Updated

April 2, 2025

Record last verified: 2025-03

Data Sharing

IPD Sharing
Will not share

The enrolled participants would not prefer to declare their onlay preparation score individually.